Select the correct answer. Which data-gathering activity would be useful for a biomechanical analysis? A. creating a graph that compares the salaries of professional gymnasts B. comparing the numbers of female gold medalists and male gold medalists in gymnastics C. tracking the increase in the number of gymnastics programs in a city over the course of a decade D. measuring the angle at which a gymnast's body bends during an aerial flip
What is the force exerted on a moving charge of -2.0mu C at a 20^circ angle through a magnetic field of 3.0times 10^-4 T with a velocity of 5.0times 10^6m/s 3.0times 10^-3 1.0times 10^-3 1.0times 10^3
10-02-01 Which statement about electromagnetic radiation is true? It is visible to the human eye. It is always dangerous to humans. It is only hazardous to living things. It is energy in the form of waves.
8. (7 points)A tree stump is dragged 30 m by a truck with a chain at 31^circ above horizontal and tension of 17 ,000 N. Find the work done. Round to the nearest N m.
Which objects in our Milky Way Galaxy have orbits that are not similar to the orbits of stars in elliptical galaxies? halo stars disk stars satellite dwarf galaxies globular clusters bulge stars
As relating to beam spread, the larger the crystal, the __ the beam. a. broader b. longer c. tighter or narrower d. shorter
When an electric current is applied to the piezoelectric crystal, it: a. vibrates. b. produces liquid crystals. c. forms gas. d. permanently changes form.
An ideal current source produces a[n] __ value of current through a load, regardless of the value of the load. Select one: a. decreasing b. constant c. proportional d. increasing
Ohm's law is I=Vdiv R What's the voltage of the battery described? A circuit has one 10.0-ohm resistor. The current flowing through the circuit is 0.15 amps. So the battery in the circuit is a square -volt battery.
Which of the following corresponds with a high change in velocity (acceleration). during a constant period of time? There is an increase in Delta p and applied force. There is a decrease in Delta p and applied force. There is an increase in Delta p and a decrease in applied force.
Convert 810 mmHg to kPa. 6.16E5 kPa 760 kPa 1.14 kPa 107.9 kPa
Which one is Newton's second law of motion? The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. The acceleration of an object as produced by a net force is inversely proportional to the magnitude of the net force, in the same direction as the net force, and directly proportional to the mass of the object. $F=\frac {m}{a}(\frac {m}{s^{2}})$ $F=\frac {a}{m}(N)$
What is the best estimale of the mass of a cupcoke? A 80 pounds 80 grams C 80 tons kiloaroms
Describe how voltage, current and resistance behave in a parallel circuit. Edit View Insert Format Tools Table $\square $
A lead ball has a mass of 55 .0 grams and a density of $11.4g/cm^{3}$ What is the volume of the ball? 4.82 mL 0.207 L 4.82 L 0.207 mL none of the above
Question 3. Three unmarked bar magnets are tested in pairs at their ends. The following observations are made: - Magnet A and Magnet B attract each other. - Magnet A and Magnet C repel each other. - Magnet B and Magnet C repel each other. Which of the following statements can be determined from these results alone? A. Magnets A and B have like poles near each other. B. Magnets A and C have like poles near each other. C. Magnets B and C have unlike poles near each other. D. All three magnets have the same pole at one end.
black holes? Gravity Normal Friction Applied What do we call the center of a black hole? Accretion Disc Event Horizon Singularity Black Point What force of physics causes nebulas to turn into stars, and later stars into 1 point 1 point
How was viscosity measured in the "Viscosity" lab? directly with a spring scale directly with a viscosity meter indirectly by measuring the distance a liquid flowed in a given time indirectly by measuring the volume of honey
You're driving down a highway late one night at $20m/s$ when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the breaks is 0.50 s, and the maximum deceleration of your car is $10m/s^{2}$ How much distance is between you and the deer when you come to a stop? 10 m Om 5.0 m 35 m 30 m
Match the items. a. Disturbance moves perpendicular to the direction of the wave b. Ocean Wave c. Sound d. Light e. Disturbance moves in the same direction as the wave 1. Surface Wave 2. Mechanical Wave 3. Electromagnetic Wave 4. Longitudinal Wave 5. Transverse Wave
